Intro Summary
Beichen BCNet‑FX adds reliable Ethernet/ModbusTCP connectivity to Mitsubishi FX PLCs for industrial monitoring and automation.
Product Overview
BCNet‑FX by Beichen is an industrial DIN‑rail mounted Ethernet communication processor designed for Mitsubishi FX series PLCs (FX1S/1N/2N/3S/3G/3U, etc.). It enables networked data acquisition without occupying the PLC’s programming port. Featuring SCADA integration, MC Ethernet protocol, ModbusTCP server, serial‑to‑Ethernet conversion, built‑in web and diagnostic tools, it supports multiple upper‑level connections and firmware updates over Ethernet .
How to Use
- Mount on 35 mm DIN‑rail and connect to FX PLC via COM1 (and optionally COM2 for HMI).
- Link Ethernet to your SCADA/HMI or PC.
- Configure via built‑in web server (default IP 192.168.1.188) or BCDevice tool.
- For GX Works2/GX Developer configuration, add as Ethernet board > PLC module, then input module IP and port .
- Enable MC protocol (port 5551) and/or ModbusTCP (port 502); mapping supports FC1/2/3/5/6/16 .
- Monitor via COM2‑reused HMI port, and adjust baud automatically .
- Update firmware via Ethernet anytime.
Frequently Asked Questions (FAQ)
- What PLCs are supported? Mitsubishi FX1S/1N/2N/3S/3G/3U/3UC series.
- Does it need external power? No—power is drawn from PLC COM1 (S8 port) .
- Can it share with HMI? Yes—COM2 extends to touchscreens by repurposing serial port .
- What protocols? Mitsubishi MC Ethernet and ModbusTCP with mapped FX data .
- Configuration options? Web UI or BCDevice diagnostic tool .
- IP/port defaults? Default IP 192.168.1.188; MC port 5551; ModbusTCP port 502 .
- Support for SCADA? Yes—compatible with MCGS, Kingview, iFIX, InTouch, Kepware OPC, WinCC, etc. .
- How many host connections? Up to 6 upper‑level systems simultaneously .
- Firmware updates? Supported via Ethernet through the web interface.
- Wi‑Fi option available? Yes—BCNet‑FX‑S variant adds AP/STA/AP+STA modes .
User Review Summary
eBay listings praise BCNet‑FX as a reliable, cost‑effective Ethernet interface:
“economical Ethernet communication processor, designed for Ethernet data acquisition of PLCs”
Comparison with Competing Products
| Product | Highlights | Price* |
|---|---|---|
| BCNet‑FX Ethernet Communication Processor | Official Beichen module, includes serial‑to‑Ethernet, SCADA support | US $118 eBay |
| BCNet‑FX Serial‑to‑Ethernet Converter | Similar scope with focused serial‑Ethernet features | US $128 eBay |
| Net‑FX generic Ethernet module | Less integrated; may lack Beichen’s features | approx. US $100+ |
All Beichen OEM units offer full protocol support and firmware update capabilities, while generic modules may need extra configuration.
Technical Specifications
- Mounting: 35 mm DIN‑rail, includes ~0.6 m serial cable
- Protocols: Mitsubishi MC Ethernet, ModbusTCP (FC1/2/3/5/6/16), TCP/IP pass-through
- Ports: COM1 (PLC), COM2 (HMI), RJ45 Ethernet
- Default IP: 192.168.1.188; MC port: 5551; ModbusTCP port: 502
- Power: via PLC COM1 port, no external supply
- Diagnostics: Web UI + BCDevice tool
- Firmware: Upgradable via Ethernet
- Connections: Up to 6 upper-level hosts
Brand or Manufacturer Info
Beichen Automation (Wuxi) specializes in industrial connectivity solutions. Their BCNet‑FX module is part of a product line supporting Siemens, Omron, Panasonic, Mitsubishi and more, reflecting their strength in versatile protocol converters and rugged industrial design.
Purchase Recommendations
Beichen：https://www.beichen.store/bcnet-fx/